Sound level meter `` Sh-52 ''.
Instruments for adjusting and controlling the PTA.The Sh-52 sound level meter has been produced since 1952. Sound level meters are used to measure all kinds of noise characteristics. The Sh-52 sound level meter is a self-contained portable device that allows you to measure sound intensity levels in dB over a wide range. It consists of a high-quality microphone, a broadband amplifier, a sensitivity switch that changes the gain in 10 dB steps, a frequency response switch and a dial gauge whose scale is directly graduated in decibels. On the front panel, in addition to the main controls, there are sockets that allow you to connect additional devices to the circuit. There is no other information on the device yet.
